I do VO as a living.
Movie Trailers, Promos,Infomercials & Corporate/Educational projects for everyone from "Silence of the Lambs" to "Sharper Image Ionic Breeze," are amongst the very successful clients for whom I have worked.
I record using a Sennheiser 416 into a Sound Devices/USB Pre2 preamp. Once in the digital domain I can edit and convert to most any format. From there delivery is a matter of deciding where, when and how.
I also travel with the same essential gear, so my availability is extensive.
I have an extensive Advertising/Marketing career history on the client-side, so I can bring a particular understanding to your situation.